Preparation

Whisk first 6 ingredients in small bowl to blend. Season to taste with salt and pepper. DO AHEAD Dressing can be made 1 day ahead. Cover and refrigerate.

Combine collard greens, cabbage, and carrots in very large bowl. Pour dressing over; toss to coat. Season generously with salt and pepper. Refrigerate until collard greens soften and wilt slightly, tossing occasionally, at least 1 hour and up to 3 hours.